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This changes how rustic generate `id` and `href` attributes for section header anchor. Now they are more github-like.
Also fixes breakage in docs caused by this and broken links in "Error Handling" section of book.
r? @steveklabnik
cc @alexcrichton
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This patch transforms functions of the form
```
fn f<Generic: AsRef<Concrete>>(arg: Generic) {
let arg: &Concrete = arg.as_ref();
// Code using arg
}
```
to the next form:
```
#[inline]
fn f<Generic: AsRef<Concrete>>(arg: Generic) {
fn f_inner(arg: &Concrete) {
// Code using arg
}
f_inner(arg.as_ref());
}
```
Therefore, most of the code is concrete and not duplicated during monomorphisation (unless inlined)
and only the tiny bit of conversion code is duplicated. This method was mentioned by @aturon in the
Conversion Traits RFC (https://github.com/rust-lang/rfcs/blame/master/text/0529-conversion-traits.md#L249) and similar techniques are not uncommon in C++ template libraries.
This patch goes to the extremes and applies the transformation even to smaller functions<sup>1</sup>
for purity of the experiment. *Some of them can be rolled back* if considered too ridiculous.
<sup>1</sup> However who knows how small are these functions are after inlining and everything.
The functions in question are mostly `fs`/`os` functions and not used especially often with variety
of argument types, so the code size reduction is rather small (but consistent). Here are the sizes
of stage2 artifacts before and after the patch:
https://gist.github.com/petrochenkov/e76a6b280f382da13c5d
https://gist.github.com/petrochenkov/6cc28727d5256dbdfed0
Note:
All the `inner` functions are concrete and unavailable for cross-crate inlining, some of them may
need `#[inline]` annotations in the future.
r? @aturon
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Windows's scheduler apparently has "problems" unblocking calls in the
asked for time period.
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This allows to skip the codegen for all the unneeded landing pads, reducing code size across the board by about 2-5%, depending on the crate. Compile times seem to be pretty unaffected though :-/
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Unwinding across an FFI boundary is undefined behaviour, so we can mark
all external function as nounwind. The obvious exception are those
functions that actually perform the unwinding.
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The FCP is coming to a close and 1.4 is coming out soon, so this brings in the
libs team decision for all library features this cycle.
Stabilized APIs:
* `<Box<str>>::into_string`
* `Arc::downgrade`
* `Arc::get_mut`
* `Arc::make_mut`
* `Arc::try_unwrap`
* `Box::from_raw`
* `Box::into_raw`
* `CStr::to_str`
* `CStr::to_string_lossy`
* `CString::from_raw`
* `CString::into_raw`
* `IntoRawFd::into_raw_fd`
* `IntoRawFd`
* `IntoRawHandle::into_raw_handle`
* `IntoRawHandle`
* `IntoRawSocket::into_raw_socket`
* `IntoRawSocket`
* `Rc::downgrade`
* `Rc::get_mut`
* `Rc::make_mut`
* `Rc::try_unwrap`
* `Result::expect`
* `String::into_boxed_slice`
* `TcpSocket::read_timeout`
* `TcpSocket::set_read_timeout`
* `TcpSocket::set_write_timeout`
* `TcpSocket::write_timeout`
* `UdpSocket::read_timeout`
* `UdpSocket::set_read_timeout`
* `UdpSocket::set_write_timeout`
* `UdpSocket::write_timeout`
* `Vec::append`
* `Vec::split_off`
* `VecDeque::append`
* `VecDeque::retain`
* `VecDeque::split_off`
* `rc::Weak::upgrade`
* `rc::Weak`
* `slice::Iter::as_slice`
* `slice::IterMut::into_slice`
* `str::CharIndices::as_str`
* `str::Chars::as_str`
* `str::split_at_mut`
* `str::split_at`
* `sync::Weak::upgrade`
* `sync::Weak`
* `thread::park_timeout`
* `thread::sleep`
Deprecated APIs
* `BTreeMap::with_b`
* `BTreeSet::with_b`
* `Option::as_mut_slice`
* `Option::as_slice`
* `Result::as_mut_slice`
* `Result::as_slice`
* `f32::from_str_radix`
* `f64::from_str_radix`
Closes #27277
Closes #27718
Closes #27736
Closes #27764
Closes #27765
Closes #27766
Closes #27767
Closes #27768
Closes #27769
Closes #27771
Closes #27773
Closes #27775
Closes #27776
Closes #27785
Closes #27792
Closes #27795
Closes #27797
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This commit does some refactoring to make almost all of the `std::rt` private.
Specifically, the following items are no longer part of its API:
* DEFAULT_ERROR_CODE
* backtrace
* unwind
* args
* at_exit
* cleanup
* heap (this is just alloc::heap)
* min_stack
* util
The module is now tagged as `#[doc(hidden)]` as the only purpose it's serve is
an entry point for the `panic!` macro via the `begin_unwind` and
`begin_unwind_fmt` reexports.
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This commit does some refactoring to make almost all of the `std::rt` private.
Specifically, the following items are no longer part of its API:
* DEFAULT_ERROR_CODE
* backtrace
* unwind
* args
* at_exit
* cleanup
* heap (this is just alloc::heap)
* min_stack
* util
The module is now tagged as `#[doc(hidden)]` as the only purpose it's serve is
an entry point for the `panic!` macro via the `begin_unwind` and
`begin_unwind_fmt` reexports.
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The FCP is coming to a close and 1.4 is coming out soon, so this brings in the
libs team decision for all library features this cycle.
Stabilized APIs:
* `<Box<str>>::into_string`
* `Arc::downgrade`
* `Arc::get_mut`
* `Arc::make_mut`
* `Arc::try_unwrap`
* `Box::from_raw`
* `Box::into_raw`
* `CStr::to_str`
* `CStr::to_string_lossy`
* `CString::from_raw`
* `CString::into_raw`
* `IntoRawFd::into_raw_fd`
* `IntoRawFd`
* `IntoRawHandle::into_raw_handle`
* `IntoRawHandle`
* `IntoRawSocket::into_raw_socket`
* `IntoRawSocket`
* `Rc::downgrade`
* `Rc::get_mut`
* `Rc::make_mut`
* `Rc::try_unwrap`
* `Result::expect`
* `String::into_boxed_slice`
* `TcpSocket::read_timeout`
* `TcpSocket::set_read_timeout`
* `TcpSocket::set_write_timeout`
* `TcpSocket::write_timeout`
* `UdpSocket::read_timeout`
* `UdpSocket::set_read_timeout`
* `UdpSocket::set_write_timeout`
* `UdpSocket::write_timeout`
* `Vec::append`
* `Vec::split_off`
* `VecDeque::append`
* `VecDeque::retain`
* `VecDeque::split_off`
* `rc::Weak::upgrade`
* `rc::Weak`
* `slice::Iter::as_slice`
* `slice::IterMut::into_slice`
* `str::CharIndices::as_str`
* `str::Chars::as_str`
* `str::split_at_mut`
* `str::split_at`
* `sync::Weak::upgrade`
* `sync::Weak`
* `thread::park_timeout`
* `thread::sleep`
Deprecated APIs
* `BTreeMap::with_b`
* `BTreeSet::with_b`
* `Option::as_mut_slice`
* `Option::as_slice`
* `Result::as_mut_slice`
* `Result::as_slice`
* `f32::from_str_radix`
* `f64::from_str_radix`
Closes #27277
Closes #27718
Closes #27736
Closes #27764
Closes #27765
Closes #27766
Closes #27767
Closes #27768
Closes #27769
Closes #27771
Closes #27773
Closes #27775
Closes #27776
Closes #27785
Closes #27792
Closes #27795
Closes #27797
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This can be shown with the example code
```rust
fn main() {
let () = include_bytes!("/etc/hosts");
}
Which will have the error:
expected `&[u8; 195]`,
found `()`
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Conventionally in C `*mut T` is a transfer of ownership where `*const T` is a
loan, so `*mut T` is likely the more appropriate return type for these
functions. Additionally, this more closely mirrors the APIs on `Box` for this
sort of functionality.
cc #27769
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I'd have thought that the types of the slice::Split would have been inferred, but this appears not to be the case. Reverted this one change.
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This can be shown with the example code
```rust
fn main() {
let () = include_bytes!("/etc/hosts");
}
Which will have the error:
expected `&[u8; 195]`,
found `()`
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Currently LLVM does not generate the debug info required to get complete backtraces even when functions are inlined, so that part of the `run-pass/backtrace-debuginfo.rs` test is disabled when targetting MSVC. At worst this results in missing stack frames where functions have been inlined.
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Add comments
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This adds a call to `rt::cleanup` on `process::exit` to make sure we clean up
after ourselves on the way out from Rust.
Closes #28065
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This commit is an implementation of [RFC 1212][rfc] which tweaks the behavior of
the `str::lines` and `BufRead::lines` iterators. Both iterators now account for
`\r\n` sequences in addition to `\n`, allowing for less surprising behavior
across platforms (especially in the `BufRead` case). Splitting *only* on the
`\n` character can still be achieved with `split('\n')` in both cases.
The `str::lines_any` function is also now deprecated as `str::lines` is a
drop-in replacement for it.
[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/1212-line-endings.md
Closes #28032
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This commit is an implementation of [RFC 1212][rfc] which tweaks the behavior of
the `str::lines` and `BufRead::lines` iterators. Both iterators now account for
`\r\n` sequences in addition to `\n`, allowing for less surprising behavior
across platforms (especially in the `BufRead` case). Splitting *only* on the
`\n` character can still be achieved with `split('\n')` in both cases.
The `str::lines_any` function is also now deprecated as `str::lines` is a
drop-in replacement for it.
[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/1212-line-endings.md
Closes #28032
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Fix formatting
Remove unused imports
Refactor
Fix msvc build
Fix line lengths
Formatting
Enable backtrace tests
Fix using directive on mac
pwd info
Work-around buildbot PWD bug, and fix libbacktrace configuration
Use alternative to `env -u` which is not supported on bitrig
Disable tests on 32-bit windows gnu
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Conventionally in C `*mut T` is a transfer of ownership where `*const T` is a
loan, so `*mut T` is likely the more appropriate return type for these
functions. Additionally, this more closely mirrors the APIs on `Box` for this
sort of functionality.
cc #27769
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This adds a call to `rt::cleanup` on `process::exit` to make sure we clean up
after ourselves on the way out from Rust.
Closes #28065
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Running TLS destructors for a MSVC Windows binary requires the linker doesn't
elide the `_tls_used` or `__tls_used` symbols (depending on the architecture).
This is currently achieved via a `#[link_args]` hack but this only works for
dynamically linked binaries because the link arguments aren't propagated to
statically linked binaries.
This commit alters the strategy to instead emit a volatile load from those
symbols so LLVM can't elide it, forcing the reference to the symbol to stay
alive as long as the callback function stays alive (which we've made sure of
with the `#[linkage]` attribute).
Closes #28111
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Running TLS destructors for a MSVC Windows binary requires the linker doesn't
elide the `_tls_used` or `__tls_used` symbols (depending on the architecture).
This is currently achieved via a `#[link_args]` hack but this only works for
dynamically linked binaries because the link arguments aren't propagated to
statically linked binaries.
This commit alters the strategy to instead emit a volatile load from those
symbols so LLVM can't elide it, forcing the reference to the symbol to stay
alive as long as the callback function stays alive (which we've made sure of
with the `#[linkage]` attribute).
Closes #28111
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It appears that these impls were left out of #25989 by mistake.
r? @alexcrichton
I'm not sure what the stability markers for these should be.
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It appears that these impls were left out of #25989 by mistake.
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For Bitrig, NetBSD and OpenBSD the constant was incorrectly in posix01, when
it's actually posix08, so we move it. This is a [breaking-change], but we
already had one in #27930.
Fix NetBSD's F_DUPFD_CLOEXEC constant.
For a similar feature detection, see this musl thread:
http://comments.gmane.org/gmane.linux.lib.musl.general/2963
This assumes that an int literal has type `c_int` for varidic functions.
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This implements the proposed "read_exact" RFC (https://github.com/rust-lang/rfcs/pull/980).
Tracking issue: https://github.com/rust-lang/rust/issues/27585
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This fixes building for ios targets caused by 7925c79.
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After submitting #28031, I ran a [script](https://gist.github.com/durka/a5243440697c780f669b) on the rest of src/ and found some anomalies. In this PR are the fixes that I thought were obvious (but I might be wrong!). The others I've submitted in issue #28037.
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This fixes building for ios targets caused by 7925c79.
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- Successful merges: #28010, #28013, #28022, #28029, #28033, #28039, #28045, #28048
- Failed merges:
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